Find the product: `((2x)/5-(3y)/7)\ ((9y^2)/(49)+(4x^2)/(25)+(6x y)/(35))`

Find the following products: (i) (0. 9 x+0. 7 y)(0. 81 x^2-0. 63 x y+0. 49 y^2) (ii) ((2x)/5-(3y)/7)((9y^2)/(49)+(4x^2)/(25)+(6x y)/(35))

Find the following products: (i) (0.9x+0.7y)(0.81x^(2)-0.63xy+0.49y^(2)) (ii) ((2x)/(5)-(3y)/(7))((9y^(2))/(49)+(4x^(2))/(25)+(6xy)/(35))

Find the products: ((3)/(x)-(5)/(y))((9)/(x^(2))+(25)/(y^(2))+(15)/(xy))

Find the products: (x+3y)(x^2-\ 3x y+9y^2)

Find the products: (3/x-5/y)(9/(x^2)+(25)/(y^2)+(15)/(x y))

Find the continued product: (2x+3y)(2x-3y)(4x^(2)+9y^(2))

Find the continued product: (2x+3y)(2x-3y)(4x^2+9y^2)

Find the products: (3x+2y)(9x^(2)-6xy+4y^(2))

Find the following products: (9x+2y)(2x-3y+7)

Find the products: (4x-5y)(16 x^2+20 x y+25 y^2)